Perpendicular magnetic recording head with improved density recording
US9704511B2 · kind B2 · utility
0Cited by
13References
19Claims
0Family size
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Key dates
| Filing date | Nov 12, 2014 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Aug 7, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/315
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The perpendicular magnetic recording head includes a magnetic pole including a first region and a second region, the first region having a first specific resistance and an end surface exposed on an air bearing surface, the second region having a second specific resistance higher than the first specific resistance and being located at a position recessed from the air bearing surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.